Iterating fields in dataclass that contains enums-CodePudding

I'm writing a routine that iterates all the fields in a dataclass. For each field that has a value it's added to a separate list.

The problem I have is that one of the fields is an enum. I can assert its datatype as an enum, but I can't access the usual .name and .value properties. Is it possible to cast the field to get access to the properties I'm after?

fields =[field, value) for field, vlaue in vars(temp_dto).items() if not field.startswith('__']

params_dict = {}

for name, value in fields:
    if value != None:
       params_dict.update({name : value})
       if issubclass(type(value),enum.Enum):
           print(value)

>> status.OPEN

Dataclass

class status(Enum):
    OPEN = 1
    CLOSED = 2
    RESTRICTED = 3


@dataclass
class AccountDto:
    account_id: int
    name: str
    region: str
    status: status

CodePudding user response：

Just an addon, for dynamically typed things your IDE can have a problem with guessing types, but typing library comes with a cast

from enum import Enum
from typing import cast

class E(Enum):
    a = "A"

class F:
    pass


def create(s: str):
    if s == "e":
        return E("A")
    if s == "f":
        return F


x = create("e")
print(x.name) # mypy shows Cannot access member "name" for type "Type[F]"
x = cast(E, x)
print(x.name) # it works!

CodePudding user response：

Non issue, was caused by error with intellisense.